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Superior laryngeal nerve paresis and paralysis
G Dursun1, R T Sataloff, J R Spiegel
1American Institute for Voice and Ear Research, Thomas Jefferson University, Philadelphia, Pennsylvania, USA.
Summary
Diagnosing superior laryngeal nerve (SLN) paresis/paralysis requires careful evaluation. Early and accurate diagnosis using methods like laryngeal electromyography is crucial for effective treatment and optimal voice outcomes.
Area of Science:
- Otolaryngology
- Neurology
- Speech-Language Pathology
Background:
- Superior laryngeal nerve (SLN) paresis and paralysis are common yet challenging diagnoses.
- Viral infections are the most frequent cause, but other etiologies require consideration.
Purpose of the Study:
- To highlight the diagnostic challenges of SLN paresis/paralysis.
- To emphasize the importance of accurate diagnosis for patient outcomes.
Main Methods:
- Comprehensive patient history and physical examination.
- Strobovideolaryngoscopy for laryngeal assessment.
- Laryngeal electromyography (LEMG) for diagnostic confirmation and monitoring.
Main Results:
- LEMG is vital for confirming clinical suspicions of SLN dysfunction.
- Accurate diagnosis aids in differentiating SLN issues from conditions like myasthenia gravis.
- LEMG serves as a guide for therapy and recovery assessment.
Conclusions:
- Early and precise diagnosis of SLN paresis/paralysis is essential.
- Timely diagnosis directs appropriate therapy, preventing vocal abuse and further injury.
- Effective management ensures the best possible phonatory outcome.